The SEO card catalog contains over 5 million items. The Defiance County libraries are one of 69 member library systems in the SEO Consortium which provides the library catalog on the web.

OPLIN Online Databases

Defiance Public Library Online Databases
Full-text databases provided by the Ohio Public Library Information 
Network (OPLIN).  As a member of OPLIN, the Defiance Public Library 
is pleased to offer these databases to home users. 

Northwest State
Click here to see the Northwest State Community College's
Catalog  

OPLIN
Click here to see other libraries from the OPLIN Home Page